Subject: Re: [PATCH net-n] net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT

From: [email-masked]
Date: Tue, 29 Oct 2024 18:40:34 +0000

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <[email-masked]>:

On Thu, 24 Oct 2024 12:55:47 -0400 you wrote:
> From: Pedro Tammela <[email-masked]>
> 
> In qdisc_tree_reduce_backlog, Qdiscs with major handle ffff: are assumed
> to be either root or ingress. This assumption is bogus since it's valid
> to create egress qdiscs with major handle ffff:
> Budimir Markovic found that for qdiscs like DRR that maintain an active
> class list, it will cause a UAF with a dangling class pointer.
> 
> [...]

Here is the summary with links:
  - [net-n] net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT
    https://git.kernel.org/netdev/net/c/2e95c4384438

You are awesome, thank you!
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